1·Geochronologists at the University of California found that the stone tools from Gona were made just before the magnetic field shift which began the Matayama epoch.
加州大学的地质年代学家们发现，戈纳石器正是在标志更新世开端的那次磁场逆转发生之前制造的。
2·Colleagues suggest that the toolmakers of Gona were Australopithecus, but Harris thinks not.
同行们认为戈纳石器的制造者是南猿，但哈里斯却不同意。
3·Today Gona in Ethiopia is a place of climatic extremes.
埃塞俄比亚戈纳地区现在的气候酷热无比。
4·And the tools at Gona bear strong similarities to those found at Olduvai Gorge.
戈纳发现的石器与奥杜瓦伊峡谷发现的石器有强烈的相似之处。
5·In the middle of 1997, Harris and Semaw were returning to Gona to search for the fossils of the toolmaker.
1997年中，哈里斯和塞摩要回到戈纳去寻找石器制造者的化石。